Honda HRX217 Lawnmower

Honda HRX217 Versamow 4-in-1 System lawnmower. It's a gas-powered mower with Smart Drive control. This mower is great for keeping your lawn tidy. The Honda lawn mower is 1-year-old. I put it in the garage and when I wanted to take it back out to go to cut the grass it started shaking. I don't know what's wrong with it. I speak Spanish and English.